chore(base): 同步版本号至1.0.21（by AI）

CHANGELOG.md

@@ -1,5 +1,10 @@
 # Changelog
 
+## [1.0.21] - 2026-06-27
+### Fixed
+- **API**: Preserved declarative preset fields injected through `$.request.*` when the `API` component initializes its internal reactive request state.
+- **Nav**: Restored horizontal dropdown behavior by removing container-level clipping, added `label`/`class` support for menu grouping, and switched vertical mode dropdown groups to inline expansion so long sidebars can scroll without popup clipping.
+
 ## [1.0.18] - 2026-06-11
 ### Changed
 - **Component-Based Refactor**: Reorganized source code into independent, PascalCase named modules (e.g., `AutoForm.js`, `TagsInput.js`, `List.js`) to improve maintainability.

README.md

@@ -24,9 +24,9 @@
 <!-- 1. 基础状态机 (地基) -->
 <script src="https://cdn.jsdelivr.net/npm/@apigo.cc/state@1.0.18/dist/state.min.js"></script>
 <!-- 2. Bootstrap 适配层 -->
-<script src="https://cdn.jsdelivr.net/npm/@apigo.cc/bootstrap@1.0.7/dist/bootstrap.min.js"></script>
+<script src="https://cdn.jsdelivr.net/npm/@apigo.cc/bootstrap@1.0.9/dist/bootstrap.min.js"></script>
 <!-- 3. 本业务组件库 -->
-<script src="https://cdn.jsdelivr.net/npm/@apigo.cc/base@1.0.18/dist/base.min.js"></script>
+<script src="https://cdn.jsdelivr.net/npm/@apigo.cc/base@1.0.21/dist/base.min.js"></script>
 ```
 <script>
   // 4. 数据先行 (在 body 解析前定义)
@@ -215,6 +215,7 @@ const { HTTP, UI, AutoForm, State } = window.ApigoBase
   // 1. 预先确定品牌与菜单数据
   const myBrand = { icon: 'shield-lock', label: '安全控制台' };
   const myNavList = [
+      { type: 'label', label: '主导航', class: 'mt-1' },
       { type: 'button', name: 'dashboard', label: '仪表盘', icon: 'speedometer' },
       { 
           type: 'dropdown', 
@@ -222,7 +223,8 @@ const { HTTP, UI, AutoForm, State } = window.ApigoBase
           label: '系统设置', 
           icon: 'gear',
           list: [
-              { type: 'button', name: 'profile', label: '个人信息', icon: 'person' },
+              { type: 'label', label: '偏好设置' },
+              { type: 'button', name: 'profile', label: '个人信息', icon: 'person', class: 'ps-2' },
               { type: 'switch', name: 'darkMode', label: '暗黑模式', icon: 'moon', bind: LocalStorage, name: 'darkMode' }
           ]
       },
@@ -241,6 +243,9 @@ const { HTTP, UI, AutoForm, State } = window.ApigoBase
 ```
 * **AI 核心要点**：
   * 常规导航项被点击时（且 `noselect` 不为 true），会自动更新全局 `Hash.nav = item.name`。
+  * `label` 可在一级或二级菜单中作为分组标题使用，`class` 可附加 Bootstrap 工具类（如 `ps-2`）做缩进或样式微调。
+  * `dropdown` 子项默认只派发 `nav` 事件，不自动写入 `Hash.nav`，适合承载偏好设置、开关等功能菜单。
+  * 垂直模式下二级菜单以内联展开方式显示，外层布局需提供局部滚动边界。
 
 ---
 

dist/base.js

@@ -399,9 +399,31 @@
   }
   globalThis.MouseMover = MouseMover;
   const APIComponent = globalThis.Component.register("API", (container) => {
-    container.request = globalThis.NewState({ url: "", method: "GET", headers: {}, data: null, timeout: 1e4, responseType: "" });
-    container.response = globalThis.NewState({ loading: false, ok: null, status: null, error: null, headers: {}, responseType: "", result: null });
-    container.result = globalThis.NewState();
+    const presetRequest = container.request && typeof container.request === "object" ? container.request : {};
+    const presetResponse = container.response && typeof container.response === "object" ? container.response : {};
+    const presetResult = container.result && typeof container.result === "object" ? container.result : {};
+    container.request = globalThis.NewState({
+      url: "",
+      method: "GET",
+      headers: {},
+      data: null,
+      timeout: 1e4,
+      responseType: "",
+      ...presetRequest,
+      headers: { ...presetRequest.headers || {} }
+    });
+    container.response = globalThis.NewState({
+      loading: false,
+      ok: null,
+      status: null,
+      error: null,
+      headers: {},
+      responseType: "",
+      result: null,
+      ...presetResponse,
+      headers: { ...presetResponse.headers || {} }
+    });
+    container.result = globalThis.NewState(presetResult);
     container.do = (opt = {}) => {
       return new Promise((resolve, reject) => {
         const req = { ...container.request, ...opt };
@@ -860,56 +882,105 @@
   ));
   globalThis.Component.register("Nav", (container) => {
     container.vertical = container.hasAttribute("vertical");
+    container.state.openName = container.state.openName || null;
     container.click = (item, noselect) => {
       if (!item.noselect && !noselect) globalThis.Hash.nav = item.name;
       container.dispatchEvent(new CustomEvent("nav", { detail: { item }, bubbles: false }));
     };
+    container.clickSubitem = (item) => {
+      container.dispatchEvent(new CustomEvent("nav", { detail: { item }, bubbles: false }));
+    };
+    container.toggleGroup = (item) => {
+      container.state.openName = container.state.openName === item.name ? null : item.name;
+      container.dispatchEvent(new CustomEvent("nav", { detail: { item, open: container.state.openName === item.name }, bubbles: false }));
+    };
   }, globalThis.Util.makeDom(
     /*html*/
     `
-<div $class="\${this.vertical ? 'd-flex flex-column border-end h-100' : 'navbar navbar-expand border-bottom'} bg-body-secondary px-3 \${this.vertical ? 'py-3' : 'pb-0'} align-items-center \${this.vertical ? 'align-items-start' : ''}">
+<div $class="\${this.vertical ? 'd-flex flex-column border-end h-100 align-self-stretch overflow-visible' : 'navbar navbar-expand border-bottom'} bg-body-secondary px-2 \${this.vertical ? 'py-3' : 'py-0'} align-items-center \${this.vertical ? 'align-items-start' : ''}" $style="this.vertical ? 'min-height:0;' : ''">
+	<div class="d-flex align-items-center gap-2">
         <template $if="this.state?.brand?.image">
-                <img $src="this.state.brand.image" $class="\${this.vertical ? 'mb-4' : 'me-2'}" style="height:30px;width:auto;max-width:300px">
+                <img $src="this.state.brand.image" $class="\${this.vertical ? 'mb-2' : 'me-2'}" style="height:30px;width:auto;max-width:300px">
         </template>
         <template $if="this.state?.brand?.icon">
-                <i $class="bi bi-\${this.state.brand.icon} \${this.vertical ? 'mb-4' : 'me-2'}"></i>
+                <i $class="bi bi-\${this.state.brand.icon} \${this.vertical ? 'mb-2' : 'me-2'}"></i>
         </template>
         <template $if="this.state?.brand?.label">
-                <span $class="\${this.vertical ? 'mb-4 fw-bold' : 'me-2'}" $text="this.state.brand.label"></span>
+                <span $class="\${this.vertical ? 'mb-2 fw-bold' : 'me-2'}" style="transform: translateY(3px);" $text="this.state.brand.label"></span>
         </template>
-        <div $class="\${this.vertical ? 'w-100' : 'ms-2'}"></div>
+	</div>
+	<div $class="d-flex \${this.vertical ? 'w-100 flex-fill mt-2 flex-column' : 'ms-2 align-items-center flex-fill'}" $style="this.vertical ? 'min-height:0; overflow-y:auto; overflow-x:visible;' : ''">
 		<template $each="this.state?.list || []">
-                <div $class="\${this.vertical ? 'nav nav-pills flex-column w-100' : 'navbar-nav'} text-truncate \${item.type==='fill'?'flex-fill':''}">
+			<div $class="\${this.vertical ? 'nav nav-pills flex-column w-100 position-relative' : 'navbar-nav flex-row align-items-center'} \${!this.vertical && item.type==='fill' ? 'flex-fill' : ''}" style="transform: translateY(3px);">
+			<template $if="item.type==='label'">
+				<div $class="\${this.vertical ? 'small text-uppercase text-body-secondary fw-semibold px-2 py-1 mt-2' : 'navbar-text small text-uppercase text-body-secondary fw-semibold px-2'} \${item.class || ''}" $text="item.label"></div>
+			</template>
 			<template $if="item.type==='button'">
-                                <button $class="nav-link \${Hash.nav===item.name?'active':''} \${this.vertical ? 'text-start' : ''}" $onclick="this.click(item)">
-                                        <i $class="bi bi-\${item.icon} me-2"></i><span $class="\${this.vertical ? '' : 'd-none d-' + (this.state?.list?.length>5?'lg':'md') + '-inline'}" $text="item.label"></span>
+				<button $class="nav-link \${Hash.nav===item.name?'active':''} \${this.vertical ? 'w-100 text-start py-1 px-2' : ''} \${item.class || ''}" $onclick="this.click(item)">
+						<i $class="bi bi-\${item.icon} me-2"></i><span $class="\${this.vertical ? 'text-truncate' : 'd-none d-' + (this.state?.list?.length>5?'lg':'md') + '-inline'}" $text="item.label"></span>
 				</button>
 				</template>
 				<template $if="item.type==='dropdown'">
-                                <div class="dropdown">
-                                        <button $class="nav-link \${Hash.nav===item.name?'active':''} \${this.vertical ? 'text-start' : ''}" data-bs-toggle="dropdown">
-                                                <i $class="bi bi-\${item.icon} me-2"></i><span $class="\${this.vertical ? '' : 'd-none d-' + (this.state?.list?.length>5?'lg':'md') + '-inline'}" $text="item.label"></span>
+					<template $if="this.vertical">
+						<div class="w-100">
+							<button type="button" $class="nav-link w-100 text-start py-1 px-2 d-flex align-items-center justify-content-between \${item.class || ''}" $onclick="this.toggleGroup(item)">
+								<span class="d-inline-flex align-items-center">
+									<i $class="bi bi-\${item.icon} me-2"></i><span class="text-truncate" $text="item.label"></span>
+								</span>
+								<i $class="bi \${this.state.openName===item.name?'bi-chevron-down':'bi-chevron-right'} small ms-2"></i>
 							</button>
-                                        <div $class="dropdown-menu \${this.vertical?'position-static':'dropdown-menu-end'} p-3 bg-body-secondary shadow" $style="width: \${item.width || 250}px;">
+							<template $if="this.state.openName===item.name">
+								<div class="d-flex flex-column w-100 ps-2 mt-1">
 									<template $each="item.list" as="subitem">
+										<template $if="subitem.type==='label'">
+											<div $class="small text-uppercase text-body-secondary fw-semibold px-2 py-1 \${subitem.class || ''}" $text="subitem.label"></div>
+										</template>
 										<template $if="subitem.type==='button'">
-                                                                <button class="nav-link px-0 w-100 text-start" $onclick="this.click(subitem, true)">
+											<button $class="nav-link w-100 text-start py-1 px-2 \${subitem.class || ''}" $onclick="this.clickSubitem(subitem)">
 												<i $class="bi bi-\${subitem.icon} me-2 d-inline-block" style="width: 16px;"></i><span $text="subitem.label"></span>
 											</button>
 										</template>
 										<template $if="subitem.type==='switch'">
-                                                                <div class="d-flex align-items-center">
+											<div $class="d-flex align-items-center px-2 py-2 \${subitem.class || ''}">
 												<i $class="bi bi-\${subitem.icon} me-2 d-inline-block" style="width: 16px;"></i><span $text="subitem.label"></span><div class="flex-fill"></div>
-                                                                        <div class="form-switch"><input class="form-check-input mx-0" type="checkbox" $bind="subitem.bind[subitem.name]"></div>
+												<div class="form-switch ms-2"><input class="form-check-input" type="checkbox" $bind="subitem.bind[subitem.name]"></div>
+											</div>
+										</template>
+									</template>
+								</div>
+							</template>
+						</div>
+					</template>
+					<template $if="!this.vertical">
+						<div class="dropdown">
+							<button type="button" $class="nav-link dropdown-toggle \${item.class || ''}" data-bs-toggle="dropdown">
+								<i $class="bi bi-\${item.icon} me-2"></i><span $class="'d-none d-' + (this.state?.list?.length>5?'lg':'md') + '-inline'" $text="item.label"></span>
+							</button>
+							<div class="dropdown-menu dropdown-menu-end p-2 bg-body-secondary shadow" $style="'width: ' + (item.width || 250) + 'px;'">
+								<template $each="item.list" as="subitem">
+									<template $if="subitem.type==='label'">
+										<div $class="dropdown-header \${subitem.class || ''}" $text="subitem.label"></div>
+									</template>
+									<template $if="subitem.type==='button'">
+										<button $class="dropdown-item \${subitem.class || ''}" $onclick="this.clickSubitem(subitem)">
+											<i $class="bi bi-\${subitem.icon} me-2 d-inline-block" style="width: 16px;"></i><span $text="subitem.label"></span>
+										</button>
+									</template>
+									<template $if="subitem.type==='switch'">
+										<div $class="d-flex align-items-center px-3 py-2 \${subitem.class || ''}">
+											<i $class="bi bi-\${subitem.icon} me-2 d-inline-block" style="width: 16px;"></i><span $text="subitem.label"></span><div class="flex-fill"></div>
+												<div class="form-switch ms-2"><input class="form-check-input" type="checkbox" $bind="subitem.bind[subitem.name]"></div>
 										</div>
 									</template>
 								</template>
 							</div>
 						</div>
 					</template>
+				</template>
 			</div>
 		</template>
 	</div>
+</div>
 `
   ));
   globalThis.Component.register("Resizer", (container) => {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@apigo.cc/base",
-  "version": "1.0.20",
+  "version": "1.0.21",
   "type": "module",
   "main": "dist/base.js",
   "files": [

src/API.js

@@ -2,9 +2,32 @@
  * API Component Module
  */
 const APIComponent = globalThis.Component.register('API', container => {
-        container.request = globalThis.NewState({ url: '', method: 'GET', headers: {}, data: null, timeout: 10000, responseType: '' })
-        container.response = globalThis.NewState({ loading: false, ok: null, status: null, error: null, headers: {}, responseType: '', result: null })
-        container.result = globalThis.NewState()
+        const presetRequest = container.request && typeof container.request === 'object' ? container.request : {}
+        const presetResponse = container.response && typeof container.response === 'object' ? container.response : {}
+        const presetResult = container.result && typeof container.result === 'object' ? container.result : {}
+
+        container.request = globalThis.NewState({
+                url: '',
+                method: 'GET',
+                headers: {},
+                data: null,
+                timeout: 10000,
+                responseType: '',
+                ...presetRequest,
+                headers: { ...(presetRequest.headers || {}) }
+        })
+        container.response = globalThis.NewState({
+                loading: false,
+                ok: null,
+                status: null,
+                error: null,
+                headers: {},
+                responseType: '',
+                result: null,
+                ...presetResponse,
+                headers: { ...(presetResponse.headers || {}) }
+        })
+        container.result = globalThis.NewState(presetResult)
         container.do = (opt = {}) => {
                 return new Promise((resolve, reject) => {
                         const req = { ...container.request, ...opt }

src/nav.js

@@ -3,52 +3,101 @@
  */
 globalThis.Component.register('Nav', container => {
 	container.vertical = container.hasAttribute('vertical')
+	container.state.openName = container.state.openName || null
 	container.click = (item, noselect) => {
 		if (!item.noselect && !noselect) globalThis.Hash.nav = item.name
 		container.dispatchEvent(new CustomEvent('nav', { detail: { item }, bubbles: false }))
 	}
+	container.clickSubitem = item => {
+		container.dispatchEvent(new CustomEvent('nav', { detail: { item }, bubbles: false }))
+	}
+	container.toggleGroup = item => {
+		container.state.openName = container.state.openName === item.name ? null : item.name
+		container.dispatchEvent(new CustomEvent('nav', { detail: { item, open: container.state.openName === item.name }, bubbles: false }))
+	}
 }, globalThis.Util.makeDom(/*html*/`
-<div $class="\${this.vertical ? 'd-flex flex-column border-end h-100' : 'navbar navbar-expand border-bottom'} bg-body-secondary px-3 \${this.vertical ? 'py-3' : 'pb-0'} align-items-center \${this.vertical ? 'align-items-start' : ''}">
+<div $class="\${this.vertical ? 'd-flex flex-column border-end h-100 align-self-stretch overflow-visible' : 'navbar navbar-expand border-bottom'} bg-body-secondary px-2 \${this.vertical ? 'py-3' : 'py-0'} align-items-center \${this.vertical ? 'align-items-start' : ''}" $style="this.vertical ? 'min-height:0;' : ''">
+	<div class="d-flex align-items-center gap-2">
         <template $if="this.state?.brand?.image">
-                <img $src="this.state.brand.image" $class="\${this.vertical ? 'mb-4' : 'me-2'}" style="height:30px;width:auto;max-width:300px">
+                <img $src="this.state.brand.image" $class="\${this.vertical ? 'mb-2' : 'me-2'}" style="height:30px;width:auto;max-width:300px">
         </template>
         <template $if="this.state?.brand?.icon">
-                <i $class="bi bi-\${this.state.brand.icon} \${this.vertical ? 'mb-4' : 'me-2'}"></i>
+                <i $class="bi bi-\${this.state.brand.icon} \${this.vertical ? 'mb-2' : 'me-2'}"></i>
         </template>
         <template $if="this.state?.brand?.label">
-                <span $class="\${this.vertical ? 'mb-4 fw-bold' : 'me-2'}" $text="this.state.brand.label"></span>
+                <span $class="\${this.vertical ? 'mb-2 fw-bold' : 'me-2'}" style="transform: translateY(3px);" $text="this.state.brand.label"></span>
         </template>
-        <div $class="\${this.vertical ? 'w-100' : 'ms-2'}"></div>
+	</div>
+	<div $class="d-flex \${this.vertical ? 'w-100 flex-fill mt-2 flex-column' : 'ms-2 align-items-center flex-fill'}" $style="this.vertical ? 'min-height:0; overflow-y:auto; overflow-x:visible;' : ''">
 		<template $each="this.state?.list || []">
-                <div $class="\${this.vertical ? 'nav nav-pills flex-column w-100' : 'navbar-nav'} text-truncate \${item.type==='fill'?'flex-fill':''}">
+			<div $class="\${this.vertical ? 'nav nav-pills flex-column w-100 position-relative' : 'navbar-nav flex-row align-items-center'} \${!this.vertical && item.type==='fill' ? 'flex-fill' : ''}" style="transform: translateY(3px);">
+			<template $if="item.type==='label'">
+				<div $class="\${this.vertical ? 'small text-uppercase text-body-secondary fw-semibold px-2 py-1 mt-2' : 'navbar-text small text-uppercase text-body-secondary fw-semibold px-2'} \${item.class || ''}" $text="item.label"></div>
+			</template>
 			<template $if="item.type==='button'">
-                                <button $class="nav-link \${Hash.nav===item.name?'active':''} \${this.vertical ? 'text-start' : ''}" $onclick="this.click(item)">
-                                        <i $class="bi bi-\${item.icon} me-2"></i><span $class="\${this.vertical ? '' : 'd-none d-' + (this.state?.list?.length>5?'lg':'md') + '-inline'}" $text="item.label"></span>
+				<button $class="nav-link \${Hash.nav===item.name?'active':''} \${this.vertical ? 'w-100 text-start py-1 px-2' : ''} \${item.class || ''}" $onclick="this.click(item)">
+						<i $class="bi bi-\${item.icon} me-2"></i><span $class="\${this.vertical ? 'text-truncate' : 'd-none d-' + (this.state?.list?.length>5?'lg':'md') + '-inline'}" $text="item.label"></span>
 				</button>
 				</template>
 				<template $if="item.type==='dropdown'">
-                                <div class="dropdown">
-                                        <button $class="nav-link \${Hash.nav===item.name?'active':''} \${this.vertical ? 'text-start' : ''}" data-bs-toggle="dropdown">
-                                                <i $class="bi bi-\${item.icon} me-2"></i><span $class="\${this.vertical ? '' : 'd-none d-' + (this.state?.list?.length>5?'lg':'md') + '-inline'}" $text="item.label"></span>
+					<template $if="this.vertical">
+						<div class="w-100">
+							<button type="button" $class="nav-link w-100 text-start py-1 px-2 d-flex align-items-center justify-content-between \${item.class || ''}" $onclick="this.toggleGroup(item)">
+								<span class="d-inline-flex align-items-center">
+									<i $class="bi bi-\${item.icon} me-2"></i><span class="text-truncate" $text="item.label"></span>
+								</span>
+								<i $class="bi \${this.state.openName===item.name?'bi-chevron-down':'bi-chevron-right'} small ms-2"></i>
 							</button>
-                                        <div $class="dropdown-menu \${this.vertical?'position-static':'dropdown-menu-end'} p-3 bg-body-secondary shadow" $style="width: \${item.width || 250}px;">
+							<template $if="this.state.openName===item.name">
+								<div class="d-flex flex-column w-100 ps-2 mt-1">
 									<template $each="item.list" as="subitem">
+										<template $if="subitem.type==='label'">
+											<div $class="small text-uppercase text-body-secondary fw-semibold px-2 py-1 \${subitem.class || ''}" $text="subitem.label"></div>
+										</template>
 										<template $if="subitem.type==='button'">
-                                                                <button class="nav-link px-0 w-100 text-start" $onclick="this.click(subitem, true)">
+											<button $class="nav-link w-100 text-start py-1 px-2 \${subitem.class || ''}" $onclick="this.clickSubitem(subitem)">
 												<i $class="bi bi-\${subitem.icon} me-2 d-inline-block" style="width: 16px;"></i><span $text="subitem.label"></span>
 											</button>
 										</template>
 										<template $if="subitem.type==='switch'">
-                                                                <div class="d-flex align-items-center">
+											<div $class="d-flex align-items-center px-2 py-2 \${subitem.class || ''}">
 												<i $class="bi bi-\${subitem.icon} me-2 d-inline-block" style="width: 16px;"></i><span $text="subitem.label"></span><div class="flex-fill"></div>
-                                                                        <div class="form-switch"><input class="form-check-input mx-0" type="checkbox" $bind="subitem.bind[subitem.name]"></div>
+												<div class="form-switch ms-2"><input class="form-check-input" type="checkbox" $bind="subitem.bind[subitem.name]"></div>
+											</div>
+										</template>
+									</template>
+								</div>
+							</template>
+						</div>
+					</template>
+					<template $if="!this.vertical">
+						<div class="dropdown">
+							<button type="button" $class="nav-link dropdown-toggle \${item.class || ''}" data-bs-toggle="dropdown">
+								<i $class="bi bi-\${item.icon} me-2"></i><span $class="'d-none d-' + (this.state?.list?.length>5?'lg':'md') + '-inline'" $text="item.label"></span>
+							</button>
+							<div class="dropdown-menu dropdown-menu-end p-2 bg-body-secondary shadow" $style="'width: ' + (item.width || 250) + 'px;'">
+								<template $each="item.list" as="subitem">
+									<template $if="subitem.type==='label'">
+										<div $class="dropdown-header \${subitem.class || ''}" $text="subitem.label"></div>
+									</template>
+									<template $if="subitem.type==='button'">
+										<button $class="dropdown-item \${subitem.class || ''}" $onclick="this.clickSubitem(subitem)">
+											<i $class="bi bi-\${subitem.icon} me-2 d-inline-block" style="width: 16px;"></i><span $text="subitem.label"></span>
+										</button>
+									</template>
+									<template $if="subitem.type==='switch'">
+										<div $class="d-flex align-items-center px-3 py-2 \${subitem.class || ''}">
+											<i $class="bi bi-\${subitem.icon} me-2 d-inline-block" style="width: 16px;"></i><span $text="subitem.label"></span><div class="flex-fill"></div>
+												<div class="form-switch ms-2"><input class="form-check-input" type="checkbox" $bind="subitem.bind[subitem.name]"></div>
 										</div>
 									</template>
 								</template>
 							</div>
 						</div>
 					</template>
+				</template>
 			</div>
 		</template>
 	</div>
+</div>
 `))

test/base.test.js

@@ -28,6 +28,35 @@ export async function runTests() {
     if (!apiResp.ok) throw new Error('API component request failed');
     api.remove();
 
+    console.log('Testing API declarative preset request fields...');
+    LocalStorage.secret = 'api-secret-token';
+    const presetApi = document.createElement('API');
+    presetApi.setAttribute('$.request.url', "'/echo'");
+    presetApi.setAttribute('$.request.method', "'POST'");
+    presetApi.setAttribute('$.request.data.secret', "LocalStorage.secret || ''");
+    document.body.appendChild(presetApi);
+    await new Promise(r => setTimeout(r, 50));
+
+    const originalFetch = globalThis.fetch;
+    let capturedBody = null;
+    globalThis.fetch = async (_url, options = {}) => {
+        capturedBody = options.body;
+        return new Response(JSON.stringify({ ok: true }), {
+            status: 200,
+            headers: { 'Content-Type': 'application/json' }
+        });
+    };
+    try {
+        const presetResp = await presetApi.do();
+        if (!presetResp.ok) throw new Error('Declarative API preset request failed');
+    } finally {
+        globalThis.fetch = originalFetch;
+        presetApi.remove();
+    }
+    if (capturedBody !== JSON.stringify({ secret: 'api-secret-token' })) {
+        throw new Error('API declarative preset request.data.secret was not preserved');
+    }
+
     // 5. AutoForm & TagsInput Test
     console.log('Testing AutoForm...');
     const { NewState } = await import('@apigo.cc/state');